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authorEric Blake <eblake@redhat.com>2020-07-06 15:39:53 -0500
committerKevin Wolf <kwolf@redhat.com>2020-07-14 15:18:59 +0200
commite54ee1b385a9d084b4052b6db7391ea2fd799fa8 (patch)
treed6e366c994426adc6f217faac79b22c3dde30507 /include/block/block.h
parentb66ff2c29817f5efa18f5120fd6f089fbf59a933 (diff)
block: Add support to warn on backing file change without format
For now, this is a mechanical addition; all callers pass false. But the next patch will use it to improve 'qemu-img rebase -u' when selecting a backing file with no format. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Message-Id: <20200706203954.341758-10-eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block/block.h')
-rw-r--r--include/block/block.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/block/block.h b/include/block/block.h
index bca3bb831c..6e36154061 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -405,8 +405,8 @@ void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
void bdrv_refresh_limits(BlockDriverState *bs, Error **errp);
int bdrv_commit(BlockDriverState *bs);
int bdrv_make_empty(BdrvChild *c, Error **errp);
-int bdrv_change_backing_file(BlockDriverState *bs,
- const char *backing_file, const char *backing_fmt);
+int bdrv_change_backing_file(BlockDriverState *bs, const char *backing_file,
+ const char *backing_fmt, bool warn);
void bdrv_register(BlockDriver *bdrv);
int bdrv_drop_intermediate(BlockDriverState *top, BlockDriverState *base,
const char *backing_file_str);